diff --git a/.github/workflows/docker_debian_unified.yml b/.github/workflows/docker_debian_unified.yml
new file mode 100644
index 000000000..8ffec1dd2
--- /dev/null
+++ b/.github/workflows/docker_debian_unified.yml
@@ -0,0 +1,145 @@
+name: Test Install Scripts Debian Unified
+
+# let only one instance run the test so cache is not corrupted.
+# cancel already running instances as only the last run will be relevant
+concurrency:
+    group: ${{ github.ref }}-debian-unified
+    cancel-in-progress: true
+
+on:
+#   schedule:
+#     # run at 5 every sunday
+#     - cron: '0 5 * * 0'
+#   push:
+#     branches-ignore:
+#       - 'future3/**'
+#   pull_request:
+#     # The branches below must be a subset of the branches above
+#     branches: [ develop ]
+  workflow_dispatch:
+
+env:
+  DOCKER_IMAGE_NAME: rpi-jukebox-rfid
+  _PATH_DOCKER_IMAGE: ./rpi-jukebox-rfid
+  _PATH_DOCKER_IMAGE_SUFFIX: .tar
+  CACHE_SCOPE: ${{ github.ref }}-debian-unified
+
+jobs:
+  prepare:
+    runs-on: ubuntu-latest
+
+    strategy:
+        fail-fast: false
+        matrix:
+          debian_version: [bullseye, buster]
+
+    # outputs:
+    #   base_image_tag_name: ${{ steps.step-output.outputs.base_image_tag_name }}
+
+    steps:
+    # - name: Set step output
+    #   id: step-output
+    #   run: |
+    #     echo "base_image_tag_name=${{ env.DOCKER_IMAGE_NAME }}:" >> $GITHUB_OUTPUT
+
+    # - name: Set step env
+    #   id: step-env
+    #   run: |
+    #     echo "base_image_tag_ebian=${{ steps.step-output.outputs.base_image_tag_name }}:${{ matrix.debian_version }}" >> $GITHUB_OUTPUT
+    #     echo "cache_scope_debian=${{ env.CACHE_SCOPE }}-${{ matrix.debian_version }}" >> $GITHUB_ENV
+    - uses: actions/checkout@v4
+
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3.0.0
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3.0.0
+
+    - name: Build Debian ARMv7 - Base
+      id: docker-build-base
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        load: false
+        push: false
+        file: ./ci/Dockerfile.debian.test_install_unified.armv7
+        target: user
+        platforms: linux/arm/v7
+        tags: "${{ env.DOCKER_IMAGE_NAME }}:${{ matrix.debian_version }}-test-base"
+        cache-from: type=gha,scope=${{ env.CACHE_SCOPE }}-${{ matrix.debian_version }}
+        cache-to: type=gha,mode=max,scope=${{ env.CACHE_SCOPE }}-${{ matrix.debian_version }}
+        build-args: |
+          DEBIAN_VERSION=${{ matrix.debian_version }}
+
+
+    - name: Build Debian ARMv7 - Update
+      id: docker-build-update
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        load: false
+        push: false
+        file: ./ci/Dockerfile.debian.test_install_unified.armv7
+        target: test-update
+        platforms: linux/arm/v7
+        tags: "${{ env.DOCKER_IMAGE_NAME }}:${{ matrix.debian_version }}-test"
+        cache-from: type=gha,scope=${{ env.CACHE_SCOPE }}-${{ matrix.debian_version }}
+        # DON'T use 'cache-to' here as then the layer is cached and this build would be useless
+        outputs: type=docker,dest=${{ env._PATH_DOCKER_IMAGE }}-${{ matrix.debian_version }}${{ env._PATH_DOCKER_IMAGE_SUFFIX }}
+        build-args: |
+          GIT_BRANCH=${{ github.ref_name }}
+          GIT_URL=${{ github.server_url }}/${{ github.repository }}
+
+    - name: Cache Check Docker Image
+      uses: actions/cache/restore@v3
+      id: cache-restore
+      with:
+        lookup-only: true
+        key: ${{ env.DOCKER_IMAGE_NAME }}-${{ github.sha }}-${{ github.run_id }}
+        path: ${{ env._PATH_DOCKER_IMAGE }}-${{ matrix.debian_version }}${{ env._PATH_DOCKER_IMAGE_SUFFIX }}
+
+    - name: Cache Save Docker Image
+      uses: actions/cache/save@v3
+      if: ${{ ! steps.cache-restore.outputs.cache-hit }}
+      with:
+        key: ${{ steps.cache-restore.outputs.cache-primary-key }}
+        path: ${{ env._PATH_DOCKER_IMAGE }}-${{ matrix.debian_version }}${{ env._PATH_DOCKER_IMAGE_SUFFIX }}
+
+
+  test:
+    needs: prepare
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        debian_version: [bullseye, buster]
+        test_Script: [run_installation_tests.sh, run_installation_tests2.sh, run_installation_tests3.sh]
+        username: [pi, hans]
+
+    steps:
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3.0.0
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3.0.0
+
+    - name: Cache Restore Docker Image
+      uses: actions/cache/restore@v3
+      with:
+        key: ${{ env.DOCKER_IMAGE_NAME }}-${{ github.sha }}-${{ github.run_id }}
+        path: ${{ env._PATH_DOCKER_IMAGE }}-${{ matrix.debian_version }}${{ env._PATH_DOCKER_IMAGE_SUFFIX }}
+        fail-on-cache-miss: true
+
+    - name: Load Docker Image
+      run: |
+        docker load --input ${{ env._PATH_DOCKER_IMAGE }}-${{ matrix.debian_version }}${{ env._PATH_DOCKER_IMAGE_SUFFIX }}
+
+    - name: Run ${{ matrix.debian_version }}-${{ matrix.username }}-${{ matrix.test_Script }}
+      uses: tj-actions/docker-run@v2
+      with:
+        image: "${{ env.DOCKER_IMAGE_NAME }}:${{ matrix.debian_version }}-test"
+        options: --platform linux/arm/v7 --user ${{ matrix.username }}
+        name: ${{ matrix.test_Script }}
+        args: |
+          ./${{ matrix.test_Script }}
diff --git a/ci/Dockerfile.debian.test_install_unified.armv7 b/ci/Dockerfile.debian.test_install_unified.armv7
new file mode 100644
index 000000000..03514f1db
--- /dev/null
+++ b/ci/Dockerfile.debian.test_install_unified.armv7
@@ -0,0 +1,77 @@
+# Target to build and install all needed base configuration and packages
+ARG DEBIAN_VERSION=bullseye
+FROM debian:${DEBIAN_VERSION}-slim as base
+ARG DEBIAN_VERSION
+
+ENV DOCKER_RUNNING=true
+RUN touch /boot/cmdlinetxt
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update \
+  && apt-get -y install \
+    apt-utils \
+    curl \
+    gnupg \
+  && echo "deb http://raspbian.raspberrypi.org/raspbian/ ${DEBIAN_VERSION} main contrib non-free rpi" > /etc/apt/sources.list.d/raspi.list \
+  && echo "deb http://archive.raspberrypi.org/debian/ ${DEBIAN_VERSION} main" >> /etc/apt/sources.list.d/raspi.list \
+  && curl http://raspbian.raspberrypi.org/raspbian.public.key | apt-key add - \
+  && curl http://archive.raspberrypi.org/debian/raspberrypi.gpg.key | apt-key add - \
+  && apt-get update \
+  && apt-get -y upgrade \
+  && apt-get -y install \
+    build-essential \
+    git \
+    iw \
+    locales \
+    sudo \
+    systemd \
+    wget \
+    wpasupplicant \
+    # install internally used packages here to speed up GitHub Action
+    raspberrypi-kernel \
+    raspberrypi-kernel-headers \
+  && rm -rf /var/lib/apt/lists/*
+# ------
+
+
+# Target for setting up user for test. user can be selected with the docker '--user $USERNAME' option
+FROM base as user
+ENV TEST_USER_GROUP=test
+
+    # Group used for assigning file permissions
+RUN groupadd --gid 1002 $TEST_USER_GROUP
+
+RUN export USER_PI=pi \
+  && export USER_PI_GROUP=$USER_PI \
+  && groupadd --gid 1000 $USER_PI_GROUP \
+  && useradd -u 1000 -g $USER_PI_GROUP -G sudo,$TEST_USER_GROUP -d /home/$USER_PI -m -s /bin/bash -p '$1$iV7TOwOe$6ojkJQXyEA9bHd/SqNLNj0' $USER_PI \
+  && echo "$USER_PI ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/$USER_PI
+
+RUN export USER_ALT=hans \
+  && export USER_ALT_GROUP=wurst \
+  && groupadd --gid 1001 $USER_ALT_GROUP \
+  && useradd -u 1001 -g $USER_ALT_GROUP -G sudo,$TEST_USER_GROUP -d /home/$USER_ALT -m -s /bin/bash -p '$1$iV7TOwOe$6ojkJQXyEA9bHd/SqNLNj0' $USER_ALT \
+  && echo "$USER_ALT ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/$USER_ALT
+# ------
+
+
+# Target for adding envs and scripts from the repo to test installation
+FROM user as test
+ARG GIT_BRANCH
+ARG GIT_URL
+
+ENV GIT_BRANCH=$GIT_BRANCH GIT_URL=$GIT_URL
+
+COPY --chown=root:$TEST_USER_GROUP --chmod=770 scripts/installscripts/buster-install-default.sh .
+WORKDIR /tests
+COPY --chown=root:$TEST_USER_GROUP --chmod=770 scripts/installscripts/tests/*.sh .
+# ------
+
+
+# Target for applying latest updates (should not be cached!)
+FROM test as test-update
+RUN apt-get update \
+  && apt-get -y upgrade \
+  && rm -rf /var/lib/apt/lists/*
+# ------